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Questions tagged [hardware-raid]

RAID solution with hardware assistance. RAID parity calculations can be performed by either the main CPU, or by a separate processor on the RAID controller card.

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Perc H740P: raid5 volume split into two foreign configurations, cannot import

After a power supply replacement we had a cabling issue which caused some disks to be missing, after debugging and fixing this in the BIOS, on the first boot, the preexisting raid5 volume was split ...
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-2 votes
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Restoring Win server 2008 from full back up?

I'm having trouble of restoring win server 2008, can anyone help me. First of all, i got the Power Edge 2900 running raid 1 with 3 disk. Power outage happend, and 2 disks are gone -slot0 and slot1 (...
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2 votes
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Are affordable hardware raids with BBU still worth it?

We have done a lot of research and got conflicting answers from experts. What is your opinion on the following? 14 x 16 TB HDDs (Raid 10 -> 100 TB usable) HW: SGL 8405 + AEC-82885T + BBU (...
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How to properly design a 300TB array?

I'm trying to figure out good practices for building a large 300TB array. Performance is not a priority, only the 300TB usable storage target plus redundancy. And yes I will be taking backups. My ...
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Using a RAID Controller as Pass-thru vs RAID0

I have a server with DellPerc H750 Storage controller. I want to use the controller as Pass-thru/Non-RAID but I have the below questions: A) Is it possible in the future to replace the controller ...
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Adaptec 6805 accessing to JBOD with GPT / NTFS

I have several hard drives with GPT and NTFS volumes, and I plugged them to an Adaptec 6805 but The volumes are not visibles from Windows 10 and from MaxView. The only option I have ti to initialize (...
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Is it best to have the OS on a separate virtual disk?

I have a server with 8 drive bays, and I have eight 4TB drives. Would it be best to do one RAID10 with all drives, or one RAID1 with two drives and then a RAID10 with the remaining six so that the ...
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One bad sector causes the whole RAID0 to fail? [closed]

In our server, we have four SSDs. The first one is for OS, and the remaining three are for RAID0. Today, the disk mount corresponding to RAID0 suddenly goes missing. When I check the disks, the 3rd ...
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how does a striped RAID work with large number of disks?

still trying to configure my large (24) array of disks (2.4TB) for an archive/nas of mixed huge and small files. But apart from this, I am now more focused to understand how striped RAIDs work under ...
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323 views

smartctl "Elements in grown defect list" vs. RAID controller "Media error count"

I am using a hardware raid50 with PERC810 controller in my server and recently encountered a metric I am not sure about. Until now, I have been using a smartctl metric "Elements in grown defect ...
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Dell PERC H750 compatibility with Debian

I've been using Debian on Dell servers for many years. For a long time I've been using the PERC H730P RAID controller, which is weel supported by utilities like MegaCLI. Recently I've bought a R440 ...
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HP DL380 G8 - P420i Raid Controller - How to monitor physical disks on a slow hardware raid volume?

There is an HP DL380 G8 server with P420i Raid Controller, containing a RAID5 volume. It suddenly became slow, but all physical disks are ok. [root@localhost ~]# ssacli ctrl all show config detail ...
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Expand RAID 5 Logical Disk from 3 to 5 Disk not possible (Adaptec Raid Controller 7805

I'm trying to expand my RAID5 volume but I can't select the available disks in the dialog. [RAID5][1] [1]: https://i.stack.imgur.com/PC6ot.png Data Protection/RAID Consistency Check is set to Disabled....
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Three Single drive Raid 1 vs JBOD

I have an intel server of which the RAID Controller does not support JBOD mode (same problem as my Dell R820s). But I want to do Ceph, so I "need" a JBOD. So I set my 3 SSDs as single drive ...
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How to configure notification on degraded RAID? [closed]

I am planning a RAID1(mirror) array in a NAS using either a Hardware or Software RAID controller using Linux. Though I did not find any documentation in which way the system will notify me that the ...
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Passing a raid controller to a KVM vm using PCI passthrough, CPU soft lockup

I have a Debian 10 host server, and an Ubuntu 20.04 guest with KVM. The Ubuntu server is created with virt-install and works as intended after install. I'm trying to use PCI passthrough to pass a raid ...
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Windows RAID drive performance suddenly dropped

I have a Windows system that has as a data drive, one RR640L controller. Attached to this controller are four 2TB drives in a RAID5 configuration (2 Seagate ST2000VN000 and 2 Samsung HD203WI). ...
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3 answers
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Need to recover RAID 6 array

By definition RAID 6 is an array of independent hard drives equipped with two independent and distributed checksum schemes Does that mean I can recover each of the hard drives one by one using ...
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1 vote
2 answers
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Can we connect two raid controllers in standby?

I'm new to server machines and even even installing raid controllers, so pardon me if its too basic question. We have a SuperMicro X10DRH-I Motherboard connected to a raid controller AOC-S3108L-H8Ir, ...
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Can we move the RAID array from one HP Server models to another HP models or one RAID controller model to another Controller model

In case my HP Proliant DL380 G6 & G7 failed, can I swap all HDD to HP Proliant DL380 G9. HP Proliant DL380 G7 is using the different controller (HP Smart Array Controllers P410i) and HP Proliant ...
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siem Qradar x3650 hardware

I have a server x3650 with a hard disk "failed". I bought a new hard disk to put it in its place, but when I put it in the server it gave me the status is unconfigured good so I tried to ...
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Megacli R10 fails with invalid arguments

Can anyone please help here? I have 6 disks and trying to do R10. Enc ID is 252 and Physical disk slots are 0-5. I'm getting invalid arguments error but am not sure what is missing. root@xyz:~# ...
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Mounting 32Tb RAID Volume Causes Server To Crash

I have a 32Tb NTFS RAID 5 volume. 5x8tb SATA, LSI 9361i+Supercap. Was working fine until it started behaving strange on day - drive name vanished and data seemed to vanish. Then rebooted, Windows 10, ...
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HPE SSA: After completing the configuration - reboot the system

From the HPE ProLiant System Utilities (BIOS) I booted into HPE Smart Storage Administrator (SSA) to migrate a logical drive with RAID6 (and existing data) to RAID5. After starting the migration task, ...
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2 votes
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MegaCLI not seeing RAID card (LSI 9271-4i)

I have a server with LSI 9271-4i card and 4 HDDs. One day the server started malfunctioning and it wouldn't list any drive information. I rebooted the server and it never came up, so I have been using ...
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How do I expand my VD on LSI 9361-16i?

I've got a 9361-16I installed in a supermicro sc847. I have the 2 expanders running in a cascaded configuration with both of them chaining off port 0-4 of the card. They are being exposed as enclosure ...
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Setting up raid hardware with out deleting data

so I have a home lab, and in the beginning, I started with only 1 DISK, and in the raid config, I bypassed the raid because I didn't have 2 disks to make a RAID 10 or 1, but now, I want some ...
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How is RAID3/4 is implemented for more than 4 drives?

I understand that, RAID 3/4 for 4 drives is: Parity Drive = D1 XOR D2 XOR D3. But what is there 5 drives or more? For example 5 or 6. How many parity drives is needed, and how XOR algorithm is working ...
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Areca RAID controller, always runs check after reboot

In the machine where I keep the backups for when a datacenter burns down I have an older Areca RAID controller (ARC-1231ML). For some reason, it always runs a check on all volumes directly after ...
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2 votes
1 answer
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How can I know if one disk faults on RAID 5?

I have 4 x 8TB configured on RAID 5, as it is if one disk faults the system can survive. But if more than 1 disk faults, the system will be destructed. How can I check if one disk is already faulted ...
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4 votes
1 answer
459 views

RAID-10 - replace the raid controller

I have a RAID-10 configured on LSI Logic 9211-4i controller (4 disks). The controller seems to be faulty. Every few days it stops to work, Vmware logs this: Lost access to volume xxxxxxxx-xxxxxxxx-...
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Hp Proliant DL120 G7 won't show ORCA

I have on old server, HP Proliant DL120 G7. I configured it with 4 500GB Hard Disk in RAID 10. With this configuration I was able to enter in ORCA setup and the hard drives where connected. Then I ...
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HPACUCLI Remotely make active spare permanent member

We have an old HP server - we let the HPE contract expire as it'll be decom'd soon, and our monitoring has flagged a failed disk. For various reasons it's difficult to organise access to the server, ...
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RAID 5 - Data corrupted after drive failure?

I have a workstation that uses an adaptec RAID 71605 controller with 4x8TB WD drives in a RAID5 config. One of these drives failed, and after replacing it and rebuilding the RAID, a lot of the data ...
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5 answers
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Differences between HW RAID and ZFS

Background I'm installing Proxmox Virtual Environment on a Dell PowerEdge R730 with a Dell PowerEdge RAID Controller (PERC) H730 Mini Hardware RAID controller and eight 3TB 7.2k 3.5" SAS HDDs. I ...
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3 votes
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xfs: can't read superblock

I get the following error: [root@mediaserv ~]# mount /dev/mapper/media1 /media mount: /media: can't read superblock on /dev/mapper/media1. This is Fedora 33. I have a RAID5 of 8x 8TB WD Red drives ...
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1 vote
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PERC 6/i Integrated RAID-0 from degraded and unconfigured RAID-10

A 4-drive RAID10 setup was made on a PERC 6/i Integrated card. One disk failed. While waiting for a disk replacement, the controller card died. Card was replaced, but unfortunately the foreign ...
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DL380 G10 - P816 controller - Extending LD produces error about max size, even though there is more space in the Array

Array A on this DL380 G10 consists of 9 1.9TB drives in a RAID 5 config. It reports unused space of 619995 MB. There are two logical drives, LD 1 with 13.55 TB (14,000,000 MB), and LD 3 with 97.66 GB (...
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Getting a RAID controller to surface scan on a sane schedule

The controller I'm presently working with is quite old, the HP Smart Array P400; in part I want to know how to deal with that controller, but I'm also interested in the general perspective -- if there ...
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1 vote
1 answer
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RAID-5 inoperable, but no disk failure

Inheritted a system with a 3ware LSI 9750-8i having five disks and RAID-5. I see a message about "RAID-5 INOPERABLE" for u1 but see no disk failure for the only disk (p1) in the unit. Unit ...
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Can not access PowerEdge Expandable RAID Controller Configuration Utility

I've looked online but can't find a solution. On post it says press ctrl+r to enter configuration utility and i do that. it then says 1 virtual drives found on the host adapter 1 virtual drives ...
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Installing Ubuntu Server on AMD chipset RAID array

I'm trying to install Ubuntu Server on a TRX40-based baremetal machine. In order to ensure the availability of this machine, I want to boot the OS from a RAID1 array. This has proved harder than ...
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How to get temperature readings of HP P420 RAID PCI-e card?

I have an HP Proliant ML110 G9 Server. Added an HP Smart Array P420 PCI-E card to have real hardware RAID on the server. Everything works fine, but I noted that the P420's processor was extremely hot (...
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Is putting Server 2019 (full os with hyper-v) and 2 2019 Guests on a single two-disk Raid 1 array reliable enough?

We're currently experiencing some significant cpu/ram performance issues with 2 VM's on our current HPE 2015 tower server (2x Xeon 8c/8t 1.7ghz) running server 2012 for HV and guests (10 guests total),...
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Data layout on RAID-1 Array

For the sake of this question, assume a RAID-1 array of two identical drives. RAID-1 (Mirroring) stores an identical copy of the data on both drives. How identical is the drive layout? Are the drives ...
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I had some drbd (i guess block devices?) on my server, after a crash they are all gone

I am not a sys admin but inherited some servers setup with no documentation in linux. Today the server died in a way it was unresponsive and the VMs running on it down...after a good few hours the ...
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Is it possible to show empty slots using StorCli?

I have been searching for a while but I couldn't find any way to show "empty/available/free" drive-slots connected to a LSI card using storcli. I don't even know if the hardware supports it. ...
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2 answers
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Can I Move RAID-1 (Mirrored) Hard Drives From a Hardware Raid Controller to Software Raid?

Old server: 3ware 9650se PCIe hardware RAID controller with 2 sets of RAID-1 (4 total drives, 2 mirrored) with a 5th drive as a hot-spare. New server: Software RAID is the only option. Plan to run ...
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5 votes
1 answer
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RAID supercapacitor only card (to replace BBU maintenance free) [closed]

An excellent article here: https://www.servethehome.com/raid-controller-batteries-time-bombs-you-need-to-replace/ Are RAID controller lithium-ion batteries ticking time bombs within your server? Over ...
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Recover data from IBM x3650 with SYS BRD ERR

As in every sysadmin nightmare after shutting down a server I'm not able to power it on any more. The server is an old IBM x3650 M4, which has been shut down because unused and of course when not ...
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